Greek Symbols

Rho Symbol

Ρ ρ

The rho symbol (Ρ / ρ) is a letter of the Greek alphabet. This page covers its meaning across mathematics, science, and engineering, its Unicode code point, TeX command, and Windows Alt codes — and you can copy and paste the rho symbol with one click.

Uppercase Rho Symbol (Ρ)

Ρ
SymbolFormatData
ΡUnicodeU+03A1
ΡHTMLΡ
ΡCSS\03a1
ΡJavaScript\u03A1
P\text{P}TeX\Rho
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Greek Capital Letter Rho (Ρ)ImageDownload ↓

Also known as: rho, uppercase rho, big rho, greek rho, greek p.

Ρ is the capital form of the Greek letter rho, visually identical to the Latin letter P. Because of this resemblance it is rarely used as a mathematical symbol in its own right, though it may appear where a capital Greek rho is needed to match a lowercase ρ. The lowercase form ρ is far more common, typically denoting density or correlation.

P\Rho

Lowercase Rho Symbol (ρ)

ρ
SymbolFormatData
ρUnicodeU+03C1
ρHTMLρ
ρCSS\03c1
ρJavaScript\u03C1
ρ\rhoTeX\rho
SVGDownload ↓
Greek Small Letter Rho (ρ)ImageDownload ↓

Also known as: greek rho, rho letter, lowercase rho, density symbol, correlation coefficient greek, p shaped greek letter, rho greek alphabet.

Rho ρ is the seventeenth letter of the Greek alphabet. It conventionally denotes density in physics, a correlation coefficient in statistics, the radius in polar or spherical coordinates, and resistivity in electrical theory.

ρ=mV\rho = \frac{m}{V}

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ρ
Rho Symbol — Ρ Greek Capital Letter Rho, ρ Greek Small Letter Rho